function focusEle(ele) {
	try {
		document.getElementById(ele).focus();
	} catch (e) {
	}
}
function updateEle(ele, content) {
	document.getElementById(ele).innerHTML = content;
}
function timestamp() {
	return new Date().getTime();
}
var XMLHttp = {
	_objPool : [],
	_getInstance : function() {
		for ( var i = 0; i < this._objPool.length; i++) {
			if (this._objPool[i].readyState == 0
					|| this._objPool[i].readyState == 4) {
				return this._objPool[i];
			}
		}
		this._objPool[this._objPool.length] = this._createObj();
		return this._objPool[this._objPool.length - 1];
	},
	_createObj : function() {
		if (window.XMLHttpRequest) {
			var objXMLHttp = new XMLHttpRequest();
		} else {
			var MSXML = [ 'MSXML2.XMLHTTP.5.0', 'MSXML2.XMLHTTP.4.0',
					'MSXML2.XMLHTTP.3.0', 'MSXML2.XMLHTTP', 'Microsoft.XMLHTTP' ];
			for ( var n = 0; n < MSXML.length; n++) {
				try {
					var objXMLHttp = new ActiveXObject(MSXML[n]);
					break;
				} catch (e) {
				}
			}
		}
		if (objXMLHttp.readyState == null) {
			objXMLHttp.readyState = 0;
			objXMLHttp.addEventListener('load', function() {
				objXMLHttp.readyState = 4;
				if (typeof objXMLHttp.onreadystatechange == "function") {
					objXMLHttp.onreadystatechange();
				}
			}, false);
		}
		return objXMLHttp;
	},
	sendReq : function(method, url, data, callback) {
		var objXMLHttp = this._getInstance();
		with (objXMLHttp) {
			try {
				if (url.indexOf("?") > 0) {
					url += "&randnum=" + Math.random();
				} else {
					url += "?randnum=" + Math.random();
				}
				open(method, url, true);
				setRequestHeader('Content-Type',
						'application/x-www-form-urlencoded; charset=UTF-8');
				send(data);
				onreadystatechange = function() {
					if (objXMLHttp.readyState == 4
							&& (objXMLHttp.status == 200 || objXMLHttp.status == 304)) {
						callback(objXMLHttp);
					}
				}
			} catch (e) {
				alert('emria:error');
			}
		}
	}
};
function sendinfo(url, node) {
	updateEle(
			node,
			"<div><span style=\"background-color:#FFFFE5; color:#666666;\">加载中...</span></div>");
	XMLHttp.sendReq('GET', url, '', function(obj) {
		updateEle(node, obj.responseText);
	});
}
function loadr(url, tid) {
	url = url + "&stamp=" + timestamp();
	var r = document.getElementById("r_" + tid);
	var rp = document.getElementById("rp_" + tid);
	if (r.style.display == "block") {
		r.style.display = "none";
		rp.style.display = "none";
	} else {
		r.style.display = "block";
		r.innerHTML = '<span style=\"background-color:#FFFFE5;text-align:center;font-size:12px;color:#666666;\">加载中...</span>';
		XMLHttp.sendReq('GET', url, '', function(obj) {
			r.innerHTML = obj.responseText;
			rp.style.display = "block";
		});
	}
}
function reply(url, tid) {
	var rtext = document.getElementById("rtext_" + tid).value;
	var rname = document.getElementById("rname_" + tid).value;
	var rcode = document.getElementById("rcode_" + tid).value;
	var rmsg = document.getElementById("rmsg_" + tid);
	var rn = document.getElementById("rn_" + tid);
	var r = document.getElementById("r_" + tid);
	var data = "r=" + rtext + "&rname=" + rname + "&rcode=" + rcode + "&tid="
			+ tid;
	XMLHttp.sendReq('POST', url, data, function(obj) {
		if (obj.responseText == 'err1') {
			rmsg.innerHTML = '(回复长度需在140个字内)';
		} else if (obj.responseText == 'err2') {
			rmsg.innerHTML = '(昵称不能为空)';
		} else if (obj.responseText == 'err3') {
			rmsg.innerHTML = '(验证码错误)';
		} else if (obj.responseText == 'err4') {
			rmsg.innerHTML = '(不允许使用该昵称)';
		} else if (obj.responseText == 'err5') {
			rmsg.innerHTML = '(已存在该回复)';
		} else if (obj.responseText == 'succ1') {
			rmsg.innerHTML = '(回复成功，等待管理员审核)';
		} else {
			r.innerHTML += obj.responseText;
			rn.innerHTML = Number(rn.innerHTML) + 1;
			rmsg.innerHTML = ''
		}
	});
}
function re(tid, rp) {
	var rtext = document.getElementById("rtext_" + tid).value = rp;
	focusEle("rtext_" + tid);
}
function commentReply(pid, c) {
	var response = document.getElementById('comment-post');
	document.getElementById('comment-pid').value = pid;
	document.getElementById('cancel-reply').style.display = '';
	c.parentNode.parentNode.appendChild(response);
}
function cancelReply() {
	var commentPlace = document.getElementById('comment-place'), response = document
			.getElementById('comment-post');
	document.getElementById('comment-pid').value = 0;
	document.getElementById('cancel-reply').style.display = 'none';
	commentPlace.appendChild(response);
}